20324128

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:242

約数の個数: 72

約数和(自身を含む): 45749340

約数和(自身を除く): 25425212

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 32, 44, 58, 88, 116, 121, 176, 181, 232, 242, 319, 352, 362, 464, 484, 638, 724, 928, 968, 1276, 1448, 1936, 1991, 2552, 2896, 3509, 3872, 3982, 5104, 5249, 5792, 7018, 7964, 10208, 10498, 14036, 15928, 20996, 21901, 28072, 31856, 41992, 43802, 56144, 57739, 63712, 83984, 87604, 112288, 115478, 167968, 175208, 230956, 350416, 461912, 635129, 700832, 923824, 1270258, 1847648, 2540516, 5081032, 10162064, 20324128]

約数ペア:

[(1, 20324128), (2, 10162064), (4, 5081032), (8, 2540516), (11, 1847648), (16, 1270258), (22, 923824), (29, 700832), (32, 635129), (44, 461912), (58, 350416), (88, 230956), (116, 175208), (121, 167968), (176, 115478), (181, 112288), (232, 87604), (242, 83984), (319, 63712), (352, 57739), (362, 56144), (464, 43802), (484, 41992), (638, 31856), (724, 28072), (928, 21901), (968, 20996), (1276, 15928), (1448, 14036), (1936, 10498), (1991, 10208), (2552, 7964), (2896, 7018), (3509, 5792), (3872, 5249), (3982, 5104)]